JAVA + OOWriter - intercept local save action

[fcore]

Hello people,

The challenge:

I'm developing a Java Web Application and I need this app to generate OO-Writer documents to users, based on exsisting templates located on the server. After, the user will download the generated docment, edit it locally as he wishes and save it. When the user saves the document (click on OO save buton, for exemple) I need to intercept that local-action and execute a server-action, saving that document remotelly.

My basic question is: Is there any way I can intercept this "save the document" action through some Macro script or programmed extension?

I'm totally new to building extensions / integrating OO into applications. Dont know if this is the right place to post this, sorry if its doubled posted.

Thanks